In the presentation they suggest they are targetting customers who can get from A-B in one charge, and then charge while they are unloading/reloading the truck. Those customers actually save time on fueling.
Otherwise he states 400 miles charge in 30 minutes. So with assumed breaks every 5-6 hours for food and bathroom, and with apparently legal requirements for drivers to take breaks - it seems like it won't be an issue (so long as there are charging stations at enough locations).
